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reference/columnSelectInput.md

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+# A selectizeInput customized for data frames with column labels
+
+Copied and modified from the IDEAFilter package Adds the option to
+select "none" which is handled later
+
+## Usage
+
+``` r
+columnSelectInput(
+  inputId,
+  label,
+  data,
+  selected = "",
+  ...,
+  col_subset = NULL,
+  placeholder = "",
+  onInitialize,
+  none_label = "No variable selected",
+  maxItems = NULL
+)
+```
+
+## Arguments
+
+- inputId:
+
+  passed to
+  [`selectizeInput`](https://rdrr.io/pkg/shiny/man/selectInput.html)
+
+- label:
+
+  passed to
+  [`selectizeInput`](https://rdrr.io/pkg/shiny/man/selectInput.html)
+
+- data:
+
+  `data.frame` object from which fields should be populated
+
+- selected:
+
+  default selection
+
+- ...:
+
+  passed to
+  [`selectizeInput`](https://rdrr.io/pkg/shiny/man/selectInput.html)
+
+- col_subset:
+
+  a `vector` containing the list of allowable columns to select
+
+- placeholder:
+
+  passed to
+  [`selectizeInput`](https://rdrr.io/pkg/shiny/man/selectInput.html)
+  options
+
+- onInitialize:
+
+  passed to
+  [`selectizeInput`](https://rdrr.io/pkg/shiny/man/selectInput.html)
+  options
+
+- none_label:
+
+  label for "none" item
+
+- maxItems:
+
+  max number of items
+
+## Value
+
+a [`selectizeInput`](https://rdrr.io/pkg/shiny/man/selectInput.html)
+dropdown element